プロフィール , トップ

研究業績

論文（英文）

• K.Tanaka and Y.Maruyama, The multiobjective optimization problem of set function, Journal of Informtion & Optimization Sciences, Vol.5(1984), No.3, pp 193-306.
• Y.Maruyama , Second-order necessary conditions for nonlinear optimization problems in Banach spaces and their application to an optimal control problem, Mathematics of Operations Research, Vol.15(1990), pp 467-482.
• Y.Maruyama , Second-order necessary conditions for an optimal control problem with state
  constraints, Bulletin of Informatics and Cybernetics, Vol.24(1990), pp 53-69.
• Y.Maruyama, Second-order necessary conditions for nonlinear optimization problems in Banach
  spaces by the use of Neustadt derivative, Mathematica Japonica, Vol.40(1994), No.3, pp 509-522.
• Y.Maruyama, On shortest and longest path problems, Optimization, Vol.38(1996), pp 287-299.
• Y.Maruyama, On a associative shortest path problems, Bulletin of Informatics and Cybernetics, Vol.29(1997), pp 67-81.
• Y.Maruyama, An invariant imbedding approach to associative shortest path problems, Mathematica Japonica, Vol.50, No.3(1999), pp 469-480.
• Y.Maruyama, A duality theorem in multiobjective routing problems with associative path costs, 1999, October, In Wataru Takahashi and Tamaki Tanaka(Eds.) Nonlinear Analysis and Convex Analysis, Proceedings of the International Conference, World Scientific Publishers (1999), pp 245-252.
• Y.Maruyama, Associative shortest and longest path problems, Bulletin of Informatics and
  Cybernetics, Vol31, No.2(1999), pp 147-163.
• Y.Maruyama, On a negative-eqivalency theorem in associative optimal path problems,
  Optimization, Vol.48 (2000), pp 137-155
• Y.Maruyama, Duality theorems in parametric associative optimal path problems, Asia-Pacific Journal of Operational Research, Vol.17 (2000), pp 149-168
• Y.Maruyama, Strong representation of a discrete decision process by a bitone sequential decision process, In Wataru Takahashi and Tamaki Tanaka(Eds.) Nonlinear Analysis and Convex Analysis, Proceedings of the International Conference, Yokohama Publishers (2003), pp 263-273.
• Y.Maruyama, Strong representation theorems for bitone sequential decision processes, Optimization Methods and Software, Vol.18, No.4 (2003), pp 475-489.
• Y.Maruyama, Associative sequential decision process, In Wataru Takahashi and Tamaki Tanaka (Eds.) Nonlinear Analysis and Convex Analysis, Proceedings of the International Conference, Yokohama Publishers (2004), pp. 255-264.
• Y.Maruyama, Positively bitone sequential decision process, In Wataru Takahashi and Tamaki Tanaka (Eds.) Nonlinear Analysis and Convex Analysis, Proceedings of the International Conference, Yokohama Publishers (2006), pp. 341-353.
• Y.Maruyama, Strong representation of a discrete decision process by positively/negatively bitone sequential decision process, Asia-Pacific Journal of Operational Research, Vol.24, No.2 (2007), pp. 181-202.

論文（和文）

• 閉路を含むネットワーク上の結合型最適経路問題の負同値法による解法, 経済学研究（九州大学経済学会）, 第66巻第1号(1999), pp7-24

国際会議発表

• Second-order necessary conditions for an optimal control problem with state constraints, The 13th International Symposium on Mathematical Programming (1988)
• Duality theorems in parametric associative shortest path problems, The 4th Conference of the Association of Asia-Pacific Operational Research Societies within IFORS (1997)
• A duality theorem in multiobjective routing problems with associative path costs, International Conference on Nonlinear Analysis and Convex Analysis (1998)
• Strong representation of a discrete decision process by a bitone sequential decision process, International Conference on Nonlinear analysis and Convex Analysis (2001)
• Strong representation theorems for bitone sequential decision processes, The Second Japanese-Sino Optimization Meeting (2002)
• Associative sequential decision process, International Conference on Nonlinear analysis and Convex Analysis (2003)
• Weak representation of a discrete decision process by a bitone sequential decision process, The Sixth International Conference on Optimization: Techniques and applications (2004)
• Positively bitone sequential decision process, The Fourth International Conference on Nonlinear and Convex Analysis (2005)
• Strong representation of a discrete decision process by positively/negatively bitone sequential decision process, The Third Sino-Japanese Optimal Meeting (2005)
• Algorithm to obtain optimal policies of recursive bitone sequential decision process, The fifth International Conference on Nonlinear and Convex Analysis (2007)

学位論文

Optimal path Problems with Path Lengths Defined by Associative Binary Operations　(2000), (九州大学数理博乙第２６号)